/*  
**    ==================================================================================================  
**    类名：CLASS_MSN_MESSAGE  
**    功能：提供类似MSN消息框  
    ---------------------------------------------------------------------------------------------------  
**    作者：ttyp  
**    邮件：ttyp@21cn.com  
**    日期：2005-3-18 
**    其它说明：本类的作者是 ttyp，Dron没有改变程序的思想，只是小改了一下形式以在 DronFw 中可用
**              版权仍然属于 ttyp
**    ==================================================================================================  
**/  
  
/*  
 *    消息构造  
 */
DronFw.Class.MsnMsg = (function ()
{
	function CLASS_MSN_MESSAGE(id,width,height,caption,title,message,target,action)  
	{  
		this.id     = id;  
		this.title  = title;  
		this.caption= caption;  
		this.message= message;  
		this.target = target;  
		this.action = action;  
		this.width    = width?width:200;  
		this.height = height?height:120;  
		this.timeout= 150;
		this.speed    = 20; 
		this.step    = 1; 
		this.right    = screen.width -1;  
		this.bottom = screen.height; 
		this.left    = this.right - this.width; 
		this.top    = this.bottom - this.height; 
		this.timer    = 0; 
	}  
	  
	/*  
	 *    隐藏消息方法  
	 */  
	CLASS_MSN_MESSAGE.prototype.hide = function()  
	{  
		if(this.onunload())      
		{  
			var offset  = this.height>this.bottom-this.top?this.height:this.bottom-this.top; 
			var me  = this;  
	 
			if(this.timer>0)  
			{   
				window.clearInterval(me.timer);  
			}  
	 
			var fun = function()  
			{  
				var x  = me.left; 
				var y  = 0; 
				var width = me.width; 
				var height = 0; 
				if(me.offset>0) 
				{ 
					height = me.offset; 
				} 
	 
				y  = me.bottom - height; 
	 
				if(y>=me.bottom) 
				{ 
					window.clearInterval(me.timer);  
					me.Pop.hide();  
				} 
				else 
				{ 
					me.offset = me.offset - me.step;  
				} 
				me.Pop.show(x,y,width,height);    
	 
				 
	 
			}  
	 
			this.timer = window.setInterval(fun,this.speed)      
		}  
	}  
	  
	/*  
	 *    消息卸载事件，可以重写  
	 */  
	CLASS_MSN_MESSAGE.prototype.onunload = function()  
	{  
		return true;  
	}  
	/*  
	 *    消息命令事件，要实现自己的连接，请重写它  
	 *  
	 */  
	CLASS_MSN_MESSAGE.prototype.oncommand = function()  
	{  
		this.hide();  
	}  
	  
	/*  
	 *    消息显示方法  
	 */  
	CLASS_MSN_MESSAGE.prototype.show = function()  
	{  
		var oPopup = window.createPopup(); //IE5.5+  
	  
		this.Pop = oPopup;  
	  
		var w = this.width;  
		var h = this.height;  
	  
		var str = "<DIV style='BORDER-RIGHT: #455690 1px solid; BORDER-TOP: #a6b4cf 1px solid; Z-INDEX: 99999; LEFT: 0px; BORDER-LEFT: #a6b4cf 1px solid; WIDTH: " + w + "px; BORDER-BOTTOM: #455690 1px solid; POSITION: absolute; TOP: 0px; HEIGHT: " + h + "px; BACKGROUND-COLOR: #c9d3f3'>"  
			str += "<TABLE style='BORDER-TOP: #ffffff 1px solid; BORDER-LEFT: #ffffff 1px solid' cellSpacing=0 cellPadding=0 width='100%' bgColor=#cfdef4 border=0>"  
			str += "<TR>"  
			str += "<TD style='FONT-SIZE: 12px;COLOR: #0f2c8c' width=30 height=24></TD>"  
			str += "<TD style='PADDING-LEFT: 4px; FONT-WEIGHT: normal; FONT-SIZE: 12px; COLOR: #1f336b; PADDING-TOP: 4px' vAlign=center width='100%'>" + this.caption + "</TD>"  
			str += "<TD style='PADDING-RIGHT: 2px; PADDING-TOP: 2px' vAlign=center align=right width=19>"  
			str += "<SPAN title=关闭 style='FONT-WEIGHT: bold; FONT-SIZE: 12px; CURSOR: hand; COLOR: red; MARGIN-RIGHT: 4px' id='btSysClose' >×</SPAN></TD>"  
			str += "</TR>"  
			str += "<TR>"  
			str += "<TD style='PADDING-RIGHT: 1px;PADDING-BOTTOM: 1px' colSpan=3 height=" + (h-28) + ">"  
			str += "<DIV style='BORDER-RIGHT: #b9c9ef 1px solid; PADDING-RIGHT: 8px; BORDER-TOP: #728eb8 1px solid; PADDING-LEFT: 8px; FONT-SIZE: 12px; PADDING-BOTTOM: 8px; BORDER-LEFT: #728eb8 1px solid; WIDTH: 100%; COLOR: #1f336b; PADDING-TOP: 8px; BORDER-BOTTOM: #b9c9ef 1px solid; HEIGHT: 100%'>" + this.title + "<BR><BR>"  
			str += "<DIV style='WORD-BREAK: break-all' align=left><A href='javascript:void(0)' hidefocus=true id='btCommand'><FONT color=#ff0000>" + this.message + "</FONT></A></DIV>"  
			str += "</DIV>"  
			str += "</TD>"  
			str += "</TR>"  
			str += "</TABLE>"  
			str += "</DIV>"  
	  
		oPopup.document.body.innerHTML = str;  
	  
		this.offset  = 0; 
		var me  = this;  
		var fun = function()  
		{  
			var x  = me.left; 
			var y  = 0; 
			var width    = me.width; 
			var height    = me.height; 
	 
	 
				if(me.offset>me.height) 
				{ 
					height = me.height; 
				} 
				else 
				{ 
					height = me.offset; 
				} 
	 
			y  = me.bottom - me.offset; 
			if(y<=me.top) 
			{ 
				me.timeout--; 
				if(me.timeout==0) 
				{ 
					window.clearInterval(me.timer);  
					me.hide(); 
				} 
			} 
			else 
			{ 
				me.offset = me.offset + me.step; 
			} 
			me.Pop.show(x,y,width,height);    
	 
			  
	 
		}  
	  
		this.timer = window.setInterval(fun,this.speed)      
	  
		 
	  
		var btClose = oPopup.document.getElementById("btSysClose");  
	  
		btClose.onclick = function()  
		{  
			me.hide();  
		}  
	  
		var btCommand = oPopup.document.getElementById("btCommand");  
		btCommand.onclick = function()  
		{  
			me.oncommand();  
		}  
	  
	  
	}  
	/* 
	** 设置速度方法 
	**/ 
	CLASS_MSN_MESSAGE.prototype.speed = function(s) 
	{ 
		var t = 20; 
		try 
		{ 
			t = praseInt(s); 
		} 
		catch(e){} 
		this.speed = t; 
	} 
	/* 
	** 设置步长方法 
	**/ 
	CLASS_MSN_MESSAGE.prototype.step = function(s) 
	{ 
		var t = 1; 
		try 
		{ 
			t = praseInt(s); 
		} 
		catch(e){} 
		this.step = t; 
	} 
	  
	CLASS_MSN_MESSAGE.prototype.rect = function(left,right,top,bottom) 
	{ 
		try 
		{ 
			this.left        = left    !=null?left:this.right-this.width; 
			this.right        = right    !=null?right:this.left +this.width; 
			this.bottom        = bottom!=null?(bottom>screen.height?screen.height:bottom):screen.height; 
			this.top        = top    !=null?top:this.bottom - this.height; 
	 
		} 
		catch(e) 
		{} 
	}

	return CLASS_MSN_MESSAGE;
})();